NIO ES8 crashes into highway patrol vehicle

31-year-old Lin Wenqin died when his Nio ES8 crashed into a highway maintenance vehicle in Putian, a city in eastern China. 

Reports state Nio's Navigate on Pilot (NOP) driver-assistance feature had been activated. 

Afterwards, a Beijing law company hired by Lin Wenqin's family accused Nio of tampering with the car's data and accessing and deleting potentially incriminating evidence without the approval of the traffic police. 

Nio responded that the intervention was motivated by safety and that it is cooperating with the police investigation.

The carmaker later introduced an app-based test that all vehicle owners must complete before accessing its NOP system.